Strap for a bag



FIG. 1 is a perspective view of a strap for a bag showing my new design.

FIG. 2 is a top view thereof.

FIG. 3 is a bottom view thereof.

FIG. 4 is a left side view thereof.

FIG. 5 is a front view thereof; and,

FIG. 6 is a reduced scale perspective view thereof.

The broken lines depicted in the drawings illustrate environmental structure and do not form part of the claim. 

CLAIM The ornamental design for a strap for a bag, as shown and described. 